56657744 has 40 divisors (see below), whose sum is σ = 128970912. Its totient is φ = 23771520.

The previous prime is 56657743. The next prime is 56657761. The reversal of 56657744 is 44775665.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 56657695 and 56657704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56657743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10094 + ... + 14669.

Almost surely, 2^56657744 is an apocalyptic number.

It is an amenable number.

56657744 is an abundant number, since it is smaller than the sum of its proper divisors (72313168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56657744 is a wasteful number, since it uses less digits than its factorization.

56657744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24795 (or 24789 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

The square root of 56657744 is about 7527.1338502779. The cubic root of 56657744 is about 384.0782898821.

It can be divided in two parts, 5 and 6657744, that multiplied together give a triangular number (33288720 = T₈₁₅₉).

The spelling of 56657744 in words is "fifty-six million, six hundred fifty-seven thousand, seven hundred forty-four".